Thawing device



H. B. RENOUF.

THAWING DEVICE.

APPLICATION FILI-:D SEPT. 24. I92I.

LSLQ, I Patented Ot. 3,1922.

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HARRY B. RENOUF, 0F KENT, OHM).

THAWING DEVECE.

Application led September 24, 1921. Serial No. 502,@49.

To all whom it may concern.'

Be it known that l, HARRY B. RnnoUr, a

citizen of the United States of Amerlca, residin at Kent in the countyof Portage and tate 0f hio, have invented certain new and usefulImprovements in Thawing Devices; and l do hereby declare that thefollowing is a full, clear, and exact description of the same, such aswill enable others skilled in the art to which it appertains to make anduse the same.

rlhis invention relates to improvements in motor driven vehicleaccessories and has for an object to provide a thawing attachment for.automobiles employing water cooling systems for the motors thereof,whereby such steam as may be generated in the cooling system of theautomobile may be used for thawing the same, when frozen, thusdispensing with the heretofore practiced methods of thawing the systemsas by pouring hot water into the radiator thereof or throwing hot waterover those parts believed to be clogged by the frozen water.

Other objects will be in part obvious and in part pointed outhereinafter.

ln order that the invention and its mode of operation may lee readilyunderstood by persons skilled in the art, l have in the accompanyinofillustrative drawings and in the detailed following description basedthereon set out one practical embodiment of the same.

ln these drawings:

Figure l is a fragmentary side elevation of an automobile provided withmy improved attachment;

Figure 2 is an elevation in detail, a part thereof being broken away andshown in section, of the radiator cap of the device; and,

Figure 3 is a detail in section showing the steam ejecting nozzle of thedevice.

Having more particular reference to the drawings, in connection withwhich like characters of reference will designate corresponding partsthroughout, it is, of course, to be understood that my improved thawingdevice or attachment is for use in connection with those types of motordriven vehicles or automobiles employing water cooling systems for themotors thereof.

ln the present embodiment of the invention, l have shown the device asapplied to the :filling opening cap of the ordinary automobile radiatorR, the same consisting of a closure cap 1 internally screw threaded asat 2 in order that the same may be turned into engagement with thesleeve forming the lling opening for the radiator R, while a valvecasing 3 is formed on the top of said cap l and receives a rotary plugvalve l therein provided with a suitable form of handle 5 for an obviouspurpose. The upper or free end of the valve casing 3 is provided withthe usual flared end 6 for facilitating positive engagement of one endof a flexible tube 7 thereover, said tube having a hand grip 8 formed ofpaper pulp or other suitable heat insulating material, fiXedly engagedwith the same in proximity to its free end, whlesaid free end of thetube is engaged over the annular flange formed on the inner end of thesteam ejector nozzle 9.

When not using my improved device, the flexible tube 7 may be carried inthe tool kit `or other convenient compartment of the automobile, whilethe valve 4 on the cap engaging the filling opening is preferably leftin a partially open position. rlhus, in event of freezing of the coolingsystem, when the motor of the vehicle has been started and operated fora short period time, the reduced quantity of water in the cooling systemwill be converted into steam by reason of its contact with the heatedengine or motor cylinders and this steam will find escape through thepartially open valve a, t-hus notifying the vehicle operator of thecondition of the water cooling system of the vehicle. rlhe flexible tube7 may be now engagedr over the dared end 6 of the valve casing 3whereupon the valve plug t is turned to its full open position, thuspermitting maximum escape of steam from the radiator R, which in turnwill be directed through the flexible tube 7 and ejected from the nozzle9 onto such portion of the radiator or water coolin system as theoperator may believe to be eected. With continued application of steamso generated in the cooling system, it will be appreciated that thesystem will be thawed and by consequence, that proper circulation of thecoolin medium within the same will be permitted.

0f course, the flexible tube 7 may be of any length, such as conditionsor preference may dictate, since as above stated, it may be desirable insome instances to direct the steam generated in the radiator R ontothose parts of the cooling system under the vehicle hood, in which eventa somewhat longer tube than that 'shown in the drawing will be required.

By reason of the arrangement of the handle 8, which is preferably formedof heat insulating material, it will be appreciated that the user of thedevice will be prevented from being burned by the steam heated ejectingnozzle9 and therefore, may advanta eously use the device.

anifestly, the construction shown is capable lof considerablemodification 'and s'uch modification as is Within the scope of my claimsI consider within the spirit of my invention.

I claim':

l. The combination with the radiator of a cooling system having a steamcavity, of a valve controlled steam outlet opening communicating withsaid cavity, and a conduit communicating with said outlet openingwhereby the steam contained within the radiator may be conveyed topoints exteriorly of said radiator substantially as and for the purposespecified.

l 2. The combination with an automobile radiator having a steam cavityarranged therein, a removable cap covering said cavity, of a valvecasing cast integral with said cap, a valve seated in said casing, and aflexible conduit communicating with said valve casing whereby the steamcontained within the cavity of the radiator may be conveyed to pointsexteriorly of the rediator.

3. The combination with a radiator of the cooling system of anautomobile having a steam cavity therein, a detachable cap for coveringsaid cavity, a valve casing secured to the upper side of said cap, avalve seated within said easing, a handle arranged exteriorly of saidcasing and connected to said valve, and a steam ejecting nozzlecommunicating with said valve casing.

4. A device of the character described comprising an automobile radiatorclosure cap having a valve casing cast integral with the upper sidethereof, a valve seated in said casing, a tube engaged at one end withthe outlet portion of the Valve casing, a steam ejecting nozzle engagedwith the remaining end or" said tube, and aheat insulated handle iXedlyengaged with the tube at a point adjacent said nozzle.

In witness whereof I have hereunto set my hand.

HARRY B. RENOUF.

